Fix phpcs error correctly

extensions/t3o_slack/Classes/Controller/SlackUserController.php

@@ -145,10 +145,10 @@ class SlackUserController extends ActionController
                     if ($response['error']) {
                         $message = ' Error code: ' . $response['error'];
                     }
-                        $this->addFlashMessage(
-                            LocalizationUtility::translate('tx_t3oslack.noConnection', $this->extensionName) . $message,
-                            '',
-                            FlashMessage::ERROR
+                    $this->addFlashMessage(
+                        LocalizationUtility::translate('tx_t3oslack.noConnection', $this->extensionName) . $message,
+                        '',
+                        FlashMessage::ERROR
                     );
                     break;
             }